5-05: Elixir of Life
Chang's fued with Tao climaxes as Cullen investigates the Swede's true intentions. In Laramie, a combative Maggie returns while Eva tends to Louise.
5-10: 61 Degrees
Against the wishes of Jim Strobridge, Cullen uses nitroglycerin to make strides. Meanwhile, the angry folks of Laramie seek justice against Durant.
While continuing the search for his family, Cullen adjusts to life working for the competition on the Central Pacific Railroad.